Power transmission



T. C. BRANDON.

POWER TBANSMISSIDN. APPLICATION FILED FEB. 15` |921.

' T. c. BRANDON. Pow RANsmlssaoN.

APPLICATION FILED FEB. I5. 1921.

z SHEETS-SHEET z.

PatentedJune 6, 1922.

Theodore C. Brandon.

attoxmg UNITED STATES THEODORE e. BRANDON, orj FALLON, NEVADA'- POWER TRANSMISSION.

Specification of LettersPatent. ,v Patented Jungn 6,y

Application filed,Februaryl 15, 1921. Seriallio.A 445,240-,

To aZZwz-om t maycoflweww l Be it knownthat I, THEoDoRE C.' BRAN- DON, a citizen of the United States, residing at Fallon, inthe county of' Churchill and State of Nevada, have invented certainvnew and useful Improvements in Power Transmission7 of which the following isa specification. p

M y invention is an improved power transmission of great strength, particularly appli cable to four wheeL drive tractors.

Referring to -K the vannexed drawings in' the rear end of the frame at the right andA left side thereof; right and leftwheels V6 and 7 secured on the outer endsof said axles respectively; a front vaxle 8; front wheels 9 and 10 secured on the right and left ends of saidv front axle; and an engine 11 mount ed on the front end of the frame 1. The engine drive shaft 12 carries a pinion 13 which vmeshes with a gear 14 on the power transmission shaft 15 extending centrally and longitudinally of the frame 1 and journaled in bearings 16 and 17 depending from said frame at the sides of said gear respectively.

My power transmission as herein disclosed includes a rear power transmission unit 2O and a front power transmission unit 21.

The unit 20 will now be described. A casing 22 is bolted to the rear end of the frame l and is formed with bearings 23 and 24 in the front and rear walls thereof in which bearings the rear end of the power Itransmission shaft 15 is journaled, said shaft extending through'tlie upper part of said casing. A ring gear 25 is journaled at an angle concentrically around the rear end of shaft 15 within the vcasing 22, in bearings 26 and 27 on the inside of the rightand left walls of the casing, said shaft extending through the opening 28 in the gear, over and under the gear andA the gearbearing at the right and;V left sides'respectively `ofl its` periphery, and at' its` lower and:A upper; sides in said bearings- The gear 25 has1 teeth 30 on its under side-andteeth. 31 on'. its

upper side, the teeth30 meshing-with the on vthe upper side of a. bevel-pinion- 332se-` cured on the shaft 15. withinthe casing 22.- The teeth 30 also mesh with. the teeth of a bevel gear 34 .securedwithin thezcasing.. 22 on a. shaft 35. journaled' in. bearings '36: inathe casing 22. v0n. the shaft-V 35 adjacent the rear side of bevelk gear 34y a spur gear` 37 is secured which meshes with pinions 38 and 39 within the Casing 22 secured on the forward end of shafts 40 and 41 respectively, which shafts are journaled in `bearings 42 and 43 in the casing 22. On the rear end of shafts 40 and 41 within the casing 22 are secured bevel pinions 44 and 45 which respectively mesh with pinions 46' and 47 respectively secured on the inner ends of the axles 2 and 3 within the casing 22 into which casing said ends of said axles extend.

The unit 21 will now be described.

trically'around the shaft 15 within the casy ingY 50 in bearings 54 and 55 on` the inside of the right and leftl side walls ofr said casing, said shaft extending through the opening 56 in said gear under the rear and over the forward sidefthereof, and saidv bearings engaging the periphery of said gear at the right and left side respectively i and the lower and upper sides of the gear. The gear 53 has teeth 57 on its under side and teeth 58 on its upper side, said. teeth respectively meshing at diametrically opposite points with bevel pinions 59 and 60 on the shaft 15 within the casing 50. The teeth 57 also mesh with a horizontal bevel gear 61 secured in the lower part of casing 50 on the upper end ofa live king bolt 62 journaled in a vertical bearing 63 on the lower Vwall of said casing. i In the lower end of bearing 63 is a ball bearing 64 by means of which the bearing 63 is turnably mounted on the differential casing 65 in which the inner ends of the split front shaft 8 are journaled. The lower end of the king bolt 62 extends into the upper part of the differential casing 65 and carries a bevel gear 66 which meshes with the bevel gear 67 of theV differential 68 on the front of shaft 8. The front wheels 9 and 10 are steered by the steering gear 70 which includes a steering wheel 71.

The power transmission shaft 15 drives the gear 37 through the medium of bevel gears 32 and 33, inclined Oear 25, and bevel gear 34, and the gear 3? drives the rear wheel 6 through pinion 38 and bevel pinions 42 and 46, and the rear wheel 7 through pinion 37 and bevel pinions 45 and 47.' rl`he power transmission shaft l5 drives the front wheels 9 and 10 through bevel pinions 59 and 60, canted gear 53, bevel gear 6l, king bolt 62, bevel gear 66, the differential bevel gear 67 and thedifferential 68.

The application of power from the transmission shaft by bevel pinions to a canted gear at two diametrically opposite points, and the transmission of power through said teeth on the upper side and teeth on the' lower side of said gear, a bevel gear on said shaft meshing with the teeth on the upper f sidey of said gear, a bevel gear on said shaft meshing with the teeth on the lower side of said gear, two tractor axles, right and left tractor wheels on said axle respectively, a bevel gear meshing with one set of teeth on said inclined gear, a spur gear rotatable by said bevel gear concentrically therewith, two shafts, a pinion on one end of each of said shaftsA meshing with said spur gear, a bevel gear on the other end of said rvtwo shafts respectively, and bevel gears on said two. axles respectively meshing with said bevel gears respectively on said two shafts.

4In testimony whereof I affix my signature.

THEODORE C. BRANDON. 

